OK...a Speedmaster Pro and one designed similarly.....
The Omega is from 1971, 861 movement. The Seiko is from September, 1983. We all know about the Omega movement, but the Seiko 7A28 is a class movement, too. Quartz, with 15 jewels, all-metal construction, and 1/10 second recording ability. Looks really nice, too...
thanks for looking!